stream2000 commented on code in PR #7865:
URL: https://github.com/apache/hudi/pull/7865#discussion_r1098438588
##########
hudi-client/hudi-client-common/src/main/java/org/apache/hudi/table/action/clean/CleanPlanner.java:
##########
@@ -101,6 +102,16 @@ public CleanPlanner(HoodieEngineContext context,
HoodieTable<T, I, K, O> hoodieT
this.fgIdToPendingLogCompactionOperations =
fileSystemView.getPendingLogCompactionOperations()
.map(entry -> Pair.of(new
HoodieFileGroupId(entry.getValue().getPartitionPath(),
entry.getValue().getFileId()), entry.getValue()))
.collect(Collectors.toMap(Pair::getKey, Pair::getValue));
+
+ // load all partitions in advance if necessary.
+ if (config.isMetadataTableEnabled()
+ &&
config.getCleanerPolicy().equals(HoodieCleaningPolicy.KEEP_LATEST_FILE_VERSIONS)
+ &&
(config.getViewStorageConfig().getStorageType().equals(FileSystemViewStorageType.MEMORY)
+ ||
(config.getViewStorageConfig().getStorageType().equals(FileSystemViewStorageType.REMOTE_FIRST)
+ &&
config.getViewStorageConfig().getSecondaryStorageType().equals(FileSystemViewStorageType.MEMORY))))
{
+ LOG.info("Load all partitions and files into file system view in advance
when using KEEP_LATEST_FILE_VERSIONS.");
+ fileSystemView.loadAllPartitions();
Review Comment:
Will this approach be slower than master branch implementation in spark? In
spark engine, partitions will be loaded parallelly in subtasks while here
partitions will be loaded by a single thread.
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